Work like you don't need the money, dance like nobody's watching and love like you've never been hurt. 

You can pick up a mistake and carry it as a burden,  or you can set it down as use it as a stepping stone to greatness.

It always seems impossible until it's done.

Success is not final and failure is not fatal. It is the courage to continue that counts.

Tomorrow is worth more than yesterday but less than today.

Your limitation - its only your imagination.

Your attitude is everything. Pick a good one.

Start, struggle, fail, fix and learn. Repeat.

Good mathematics is not about how many answers you know... It is about how you behave when you don't know.

Don't put off until tomorrow what you can do today. If today you have no time, it means tomorrow you'll be too tired and the next day you'll be something else.

Never let a dark chapter make you forget that better days are ahead of you. Your story is far from over.

Hard work beats talent when talent doesn't work hard.

The journey of a thousand miles begins with one step.

Mathematics Is not a spectator sport. The only way to learn mathematics is to do mathematics.

Be strong enough to stand alone, smart enough to know when you need help, and brave enough to ask for it.